Car info at top of thread. Narrowed down to Frankenstein m115 240 and mamo 227 heads. I will change my fast 102 out for my msd intake after I get it ported. Current tune is conservative at 422whp 12.8 afr through ford nodular 9inch and 6speed, Bryant crank, cam specs 236/244 114 lsa lobe 340/351. Will retune with more aggressive to see how she does but I expect 450-480whp as my current set did 435whp but i dialed it back on the tune. 241heads fell off at 6995rpm. I’m sure either heads with ported msd should get me close but we shall see with new parts and more aggressive tune at 12.5 afr.

 

Right. Keep believing what you will. Seen any unicorns lately?

 

Im also on CF Forum a lot. Out of dozens of guys on the C5 Z06 external bolt-ons, stock long block, in 25 years of trying, the quickest C5 Z06 has gone is 10.89@125mph!! It would take a Helluva lot more power (and a Helluva lot better driver!) to shave damn near another second off that time, and pick up another 6mph at those speeds.

 

The C6 Z06 fast list has 62 guys submitting results with stock long block and bolt-ons. Quickest was a 9.87@138.70. Only 13/100 (.013) quicker than your claim. Interestingly enough, the same guy has both C5 Z06 and C6 Z06 records for the quickest stock long block with bolt-ons. It's nothing personal, dude. But there's just no way a stock long block with bolt-ons C5 Z06 is gonna run 10.00 flat. No way......

 

So far I'm the only one who has posted factual evidence.......the others has just posted sub par builds.

Maybe your combo is bad.......yours isn't the only one. There's lots of them.......because erryone thinks they can put a great combo together. Get the latest greatest head the super spiffy custom cam that's perfect for your combo.......gotta be on point right.....lol

Or not....🤣....I'm not really laughing at your combo. I hate to see anyone spend good money and the effort to see subpar results. It's just funny that you think a 5.7 beating your numbers can't be done. Hell i didn't even remove the air filter, was turning all accessories. I intended to make some changes on the dyno that day just for a hero number but I had a starter issue and it took my time up replacing it. Maybe it woulda made no difference......maybe it woulda picked up 10 or 12.......for another day I suppose.

I guess you missed where he said 18yrs ago......nothing that was normal 18s yrs ago should be normal today in respect to power development. To be honest his numbers was below average for even then.

There's no believing anything.......it's what myself and others HAS DONE. There's only not believing at that point. Or not knowing.
It's not about power......it's about acceleration.


There's way more guys that don't know wtf their doing then that there is.

We did a bolt on ls3 c6 that went 10.5@ 132......where does it land on the c6z list?? Because honestly if those guys knew wtf they were doing a ls3 couldn't even make that list........and I know we left a half second on the table with that car.

Btw the robz/vette boy thread about the 10.0 bolt on ls6 is on THIS SITE.
The difference between you nay sayers a myself is I can see where the extra speed came from with his bolt on ls6 even from my perspective..........and yall have no ******* clue how to even get to my perspective.

 

Ill agree to disagree. I will say that with your apparent supreme knowledge, you should hold multiple world records, and own your own hi performance shop. You've managed to insult a lot of people, something Albert Einstein never did. But then he was probably an incompetent **** in your eyes, too. And fig newtons were smarter than Isaac Newton, too....

 

Theoretically a 346 can make the same HP as a 376 at a higher rpm. High compression and a short runner intake and spin to 7800 with a happy dyno and 500 is possible. No power steering and an electric water pump helps as well. If this is a track only car that's fine but for a street driven car it probably isn't an optimal combo.

 

I haven't insulted anyone. I've only said facts. So there is no agreeing to disagree when you are just flat out wrong.......that's simply you being wrong.

It's funny you bring up newton and Einstein......both of which I'm sure had their own nay sayers......kinda like you.

Here's the real funny part......I'm not the only one to prove you wrong. 🤣🤣🤣

Well i kinda did have the mph record for a bolt on ls6 et was a 10.7. 2 or 3 other bolt on ls6's in that area with vette boy being the outlier.......but as i said i can see how he got there. And after I found more power in it I woulda likely went 133 or maybe 134 with it.

We have the record for a bolt on ls3 m6 c6 at 10.5@132. Easy .5 left in it .

I think we may have it with a 5gen m6 also.....it went 11.5@120 at full weight. That thing needed some gear. Didn't even have a drag pak on it. Be pretty easy to beat that time really.

Recently my buddy went 9.0@150~ with a bolt on c7z. Now i had no hands on that project but we did discuss the best route for his mods......that car still doesn't even have headers🤣🤣

What were you saying again??? Oooh that's right you still think a 5.7 should struggle to bust 450whp with h/c


I'd be looking for 600+whp then out of a raceier combo.

 

HioSSilver, why don't you do a new thread with all your secrets?

 

There's been no secrets. It's all on this site. My car is pretty well documented over the years on here......maybe you're just to stupid to figure out what is wrote in plain engrish. So then you would just rather be on here calling bs on errythang you can't figure out.

Now I didn't do a build thread on this 5.7.....but most of it is in this thread and you still can't figure it out.

 

Show me the proof. You do insult people telling them you're the only one who knows what they're doing. That 100 guys on the CF don't know wtf they're doing. Anyone can spew bullshit. Show me the proof with a video and a teardown of the engine. Until then, you're fulla **** like a Christmas goose......

 

My latest build is a 370 with no power steering and no electric water pump. I've pulled some weight out of the car as well but still glass in the windshield, hatch and door windows. Manual windows by the way so no power seats or power windows, spare tire so we'll see but it will see the dyno before the track. Just a basic Gen IIi block bored 0.030 over with L92 heads and Ferrea valves, PAC .660 springs with TSP roller rockers and a 23X-24X camshaft with .630 lift on a 111+3 LSA. You know just basic GM bolt on **** with a notable tuner doing the tune. Will it make Hio HP?

Probably not!

 

Report back to this thread.

 

I know you guys are saying no way, but Doug…Hio…has actually been faster/quicker with track times than his dyno numbers show. He’s been on here for years doing this stuff. If you follow his ACCELERATION wording, you’ll read more into how he does this stuff. He’s secretive about things in a way, yet if you’ve read enough of his stuff, you’ll get the general idea. Taking 24 ounces out of valvetrain…a pound and a half…out of valvetrain alone is one of his “secrets”, but it’s no secret…it’s available to all. Lightweight driveline components makes for quicker acceleration also. Notice I said acceleration again….
Doug has enough experience with race teams that he doesn’t feel obligated to show all his cards. I get it. We made 825hp with a N/A SBC in 1990. Nobody believed us either, and we sure as heck didn’t pass out secrets….

 

Aluminum flywheel and lightweight valve springs are fine for a car living 1/4 mile at a time. I prefer my double springs in case one should fail, I don't grenade the engine driving around town. The other issue is you can spends thousands to gain an extra 30 or 40 hp or you can spend thousands on a blower and gain a heck of a lot more. Pick your poison.

 

Focus on the whole COMBO... just not the heads. Dyno numbers is not everything as they all will read differently from shop to shop from day to day. You can change tires at the dyno and it will read a different number. The bigger drum dynos go read a lower number as well so keep that in mind as well.

My combo on paper was only suppose to make 450 rwhp but i ended up making a hair under 500 rwhp with a heavy clutch setup, pump gas on a heartbreaker 48 inch drum dyno. Most dynos uses a 24 inch drum which throws the computer a HIGHER number. Best part about my combo is that its simple and im running a home ported 799 casting head.

 

What intake are you running, Tusky?

 

I shouldn't have told Hi-O he was full of . For that, I am truly sorry, and hope he forgives me. However, perhaps it depends on one's definition of "bolt-ons." I still wont buy the 10 flat bolt on LS6, assuming it was in a Vette, or similar light car. Also, to run a 10 flat, you'd have to do some serious gutting and lightening of the car. The C5Z06 I'm thinking about would still be fully equipped with whatever options it came with from GM. The bolt-ons I'm taking about are external bolt-ons, and on the engine only. Like headers, intake, TB, UD pulleys with EWP, etc. If you start running lightweight rotors, carbon fiber everything, aluminum flywheels etc., then thats not in the spirit of the rules, IMHO. Neither is stripping the interior and removing non-essential parts. This is about bolt-ons, NOT bolt-removals. I do fully get what he is saying about acceleration. But I'll never believe a stock C5Z06 can run a 10 flat 1/4 mile with external bolt-ons and stock internals. It wasn't even his build I was really disputing, although some subject matter there is certainly open for discussion. Also, I'm sticking to my guns with 54 years of drag racing experience, that if your combo is even resonably dialed in, your trap speeds sure as Hell shouldn't vary 13mph from one run to another. It was the guy who ran a 10 flat that I was calling on.

 

Also sorry for the semi hi-jack.....

 

Im runnIng a fast 102 port matched to the heads.